Security criteria are the measurable requirements used to judge whether a service, system, or vendor is safe enough to use. They can cover authentication, encryption, logging, patching, resilience, access control, data handling, and operational governance. In procurement, they turn vague promises like “secure” into specific conditions that can be tested and enforced.
They matter because security is not only about technology, but about whether the chosen design can be defended over time. In real-world attacks, weak criteria often show up as missing logs, poor segmentation, unclear responsibility, or a provider that cannot support timely updates. In defense, strong criteria help buyers compare options, reduce vendor dependence, and require features that support monitoring, continuity, and incident response. For critical infrastructure, security criteria are a baseline for choosing services that remain manageable as threats and business needs change.